TY  - BOOK
AU  - Purcell,Dennis
AU  - Anderson,Jock R
TI  - Agricultural extension and research: achievements and problems in national systems 
SN  - 0821338781
PY  - 1997///
CY  - Washington, D.C.
PB  - World Bank
KW  - Agricultural extension work
KW  - Developing Countries
KW  - Evaluation
KW  - National agricultural research systems
KW  - World Bank
N1  - Includes bibliographical references; Open access
ER  -